Home
Class 11
CHEMISTRY
Statement-1: Combustion of all organic c...

Statement-1: Combustion of all organic compounds is an exothermic reaction .
Statement-2: The enthalpy of formation of all elements in their standard state are zero.

A

Statement-1 is True, Statement -2 is True, Statement-2 is a correct explanation for Statement-1.

B

Statement -1 is True ,Starement -2 is True ,Statement-2 is not a correct explanation for Statement-1

C

Statement-1 is True ,Statement-2 is False.

D

Statement-1 is False ,Statement-2 is True.

Text Solution

Verified by Experts

The correct Answer is:
b
Promotional Banner

Topper's Solved these Questions

  • SALT ANALYSIS

    GRB PUBLICATION|Exercise Subjective Type|69 Videos

Similar Questions

Explore conceptually related problems

The enthalpies of formation of all the elements in their standard states are

Assertion (A). Combustion of all organic compounds is an exothermic reaction. Reason (R). The enthalpies of all elements in their standard state are zero

The enthalpies of all elements in their standard states are :

Enthalpy, entropy and free energy of formation of elementary substances in the standard state are taken as zero.

Statement -1: The Standard free energy changes of all spontaneously occurring reactions are negative . Statement-2: The standard free energies of the elements in their standard states at 1 bar and 2985K aare taken aszero.

Statement-1 : Neutralisation reaction is an Endothermic Process. Statement-2 : Standard Enthalpy of Neutralisation for different pairs of strong acid and strong base are different. Statement-3 : Standard Enthalpy of Neutralisation for a pair of strong acid and strong base is higher than that of weak acid and weak base.

GRB PUBLICATION-THERMODYNAMICS-All Questions
  1. Statement-1: There is a natural asymmetry between work to heat and con...

    Text Solution

    |

  2. Statement-1: A reaction with K(p)=(1)/(1.005)atm^(2) is expected to be...

    Text Solution

    |

  3. Statement-1: Combustion of all organic compounds is an exothermic reac...

    Text Solution

    |

  4. Statement-1:A liquid crystallises into a solid and is accompainied by ...

    Text Solution

    |

  5. Which of the following statement (s) is /are true ?

    Text Solution

    |

  6. Which of the following option(s) will show a decrease in Gibbs free e...

    Text Solution

    |

  7. Which of the following statement(s) are incorrect ?

    Text Solution

    |

  8. One mole of an ideal diatomic gas (C(v)=5 cal K^(-1) "mole"^(-1)) ch...

    Text Solution

    |

  9. The normal boiling point of a liquid X is 400 K. Which of the fol...

    Text Solution

    |

  10. The following is(are) endothermic reaction (s):

    Text Solution

    |

  11. Which of the following stament (s) is/are false ?

    Text Solution

    |

  12. Which of the following stament (s) is/are false ?

    Text Solution

    |

  13. From the following date , mark the opation(s) where Delta H is correct...

    Text Solution

    |

  14. Select the correct statement (s).

    Text Solution

    |

  15. Select the correct statement for an ideal gas undergoinf reversibl...

    Text Solution

    |

  16. For the charge : R to P: " "DeltaH=-ve If in above ...

    Text Solution

    |

  17. Which of the following statement is .are correct ?

    Text Solution

    |

  18. For a soild A(s) following sate is giiven is given DeltaH (fusion...

    Text Solution

    |

  19. Which of the following processe will lead to increase in entropy of u...

    Text Solution

    |

  20. Consider the reaction, C(6)H(12)O(6)(g)+6O(2)(g) to 6CO(2)(g) +6H(2...

    Text Solution

    |